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1 Gospodarka Wodna

1 2009

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Ocena potencjalnego wpływu hodowli ryb łososiowatych na jakość wód powierzchniowych

Quant B., Haustein E., Remiszewska-Skwarek A.

Gospodarka Wodna

2009

Nr 5

202-205

For the last several years we have observed in Poland a positive tendency of the surface waters quality improvement, resulting mainly from the elimination of pollution sources and the developing awareness of the necessity to observe environmental law. The fishing economy can also be counted among dynamically developing industries, especially the fish culture requiring decisive steps in order to determine the volume and type of pollutions introduced to surface waters and the extent to which it can influence the biological balance in water environment. The article presents results of quality research regarding the water inflowing and outflowing from fish ponds of a fish farm located in the Pomorskie Voivodeship, supplied with technological water from the Reda River. Based on the obtained results it was stated that the existence of such fish farms can potentially increase the level of pollution in the watercourse. However, the threat posed by fish farms is generally small and it is more related to the quality of the recipient waters than with the real load of pollutions drained from the farm.